Malware Analysis Report

2024-10-19 10:16

Sample ID 240406-n58yzsad96
Target e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118
SHA256 d89fef7af32d625d01dfe6c3247891b004be3c5a2d844764fe9d04e6da5c3a84
Tags
dridex 22201 botnet loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d89fef7af32d625d01dfe6c3247891b004be3c5a2d844764fe9d04e6da5c3a84

Threat Level: Known bad

The file e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

dridex 22201 botnet loader

Dridex

Dridex Loader

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-06 11:59

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 11:59

Reported

2024-04-06 12:02

Platform

win7-20240221-en

Max time kernel

141s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1660 -s 300

Network

N/A

Files

memory/1660-0-0x00000000745C0000-0x00000000745F0000-memory.dmp

memory/1660-1-0x0000000000190000-0x0000000000196000-memory.dmp

memory/1660-2-0x00000000745C0000-0x00000000745F0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 11:59

Reported

2024-04-06 12:02

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

152s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118.dll,#1

Signatures

Dridex

botnet dridex

Dridex Loader

botnet loader
Description Indicator Process Target
N/A N/A N/A N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1188 wrote to memory of 4512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1188 wrote to memory of 4512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1188 wrote to memory of 4512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\e27ec63634f951dad53ea5f6cbbf5d2a_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4512 -ip 4512

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4512 -s 688

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 28.143.109.104.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 91.65.42.20.in-addr.arpa udp

Files

memory/4512-0-0x00000000750D0000-0x0000000075100000-memory.dmp

memory/4512-1-0x0000000000FF0000-0x0000000000FF6000-memory.dmp